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[1]张汉泉,路漫漫,胡定国.硫酸渣磁化焙烧-磁选提铁降硫[J].武汉工程大学学报,2012,(10):15-18.[doi:103969/jissn16742869201210004]
 ZHANG Han quan,LU Man man,HU Ding guo.Iron concentration and sulfur reduction on sulphuric acid drag by magnetic roastingmagnetic separation[J].Journal of Wuhan Institute of Technology,2012,(10):15-18.[doi:103969/jissn16742869201210004]
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硫酸渣磁化焙烧-磁选提铁降硫(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2012年10期
页码:
15-18
栏目:
资源与土木工程
出版日期:
2012-11-06

文章信息/Info

Title:
Iron concentration and sulfur reduction on sulphuric acid drag by
magnetic roastingmagnetic separation
文章编号:
16742869(2012)10001504
作者:
张汉泉1路漫漫1胡定国2
1.武汉工程大学环境与城市建设学院,湖北 武汉 430074;
2.武钢矿业有限公司灵乡铁矿,湖北 大冶 435121
Author(s):
ZHANG Hanquan1 LU Manman1 HU Dingguo2
1.School of Environment and Civil Engineering, Wuhan Institute of Technology, Wuhan 430074,China;
2.Lingxiang Iron Mine of WISCO,Daye 435121,China
关键词:
硫酸渣铁品位磁化焙烧弱磁选
Keywords:
sulphuric acid drag iron grademagnetizing roastingmagnetic separation
分类号:
X75
DOI:
103969/jissn16742869201210004
文献标志码:
A
摘要:
硫酸渣铁品位为55.08%,其中有害元素硫的含量为1.3%.为高效利用硫酸渣,必须提高铁含量、降低硫磷等有害元素.硫酸渣试样直接进行弱磁选,得到铁精矿品位60.54%,精矿回收率仅为54.46%,采用磁化焙烧-弱磁选的方法来进行选铁试验,通过对磁化焙烧时间、磁化焙烧温度、还原剂的质量配比等条件试验,确定了在焙烧时间40 min,焙烧温度750 ℃,还原剂10%的最佳焙烧条件.焙烧矿磨矿至-0.074 mm97.02%,用弱磁选管进行磁选的最佳试验条件,在此焙烧条件下,进行一粗一精的磁选,获得了铁品位64.57%,精矿回收率86.99%,硫含量降低到0.13%.
Abstract:
The iron content (mass fraction) is 55.08% and the sulfur is 1.3% in sulfuric acid residue. This experiment aims at improving the iron grade and reducing the harmful elements such as sulfur in the drag. Direct magnetic separation was used, obtaining 60.54% iron concentrate grade, only 54.46% iron recoveries. Then process of magnetizing roastingmagnetic separation was put forward. Through analyzing the experimental condition of magnetizing roast temperature, magnetizing roast time and the proportion of reducer, the condition of 40 minutes of roast time, 750 ℃ of roasting temperature and 10% reducer is the best. When the roasted product is grinded to -0.074 mm 97.02%, a good index through simple mineral processing is got, the iron grade of concentrate reaches to 64.57%% and the iron recovery rate reaches to 86.99%. The mass fraction of sulfur in iron concentrate is reduced to 0.13% after the roasting product is separated by one roughing and one cleaning magnetic separation process.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:20120914作者简介:张汉泉(1971),男,湖北黄冈人, 副教授,博士.研究方向:金属矿选矿、造块工艺研究.
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